A quick Google search showed 1 posting of someone who may have had trouble with getting the product delivered to them.

I have been thinking of getting an URsack to protect against critters and bears, but I am not sure that the URsack's fabric is strong enough to resist getting chewed through by critter's sharp teeth. Should I just get the URsack or both these products? (I am aware that the URsack lost its conditional approval).

I have a RatSack, I think it's the medium size (weighs 6 oz. on my scale, maybe 11"x17" or so), and I've never had any problems with critters here in the NE–but I always hang it like a bear bag. Compared to a Bear Vault, it's the way to go (although you give up the seat the can offers).

I purchased mine locally from a old-time outfitter (not a chain), but if you have order from them directly, why not?

The fabric is a woven stainless steel, slightly stiff although roll-able, and the spacing (I don't have it in front of me) is about 3/16" (4-5 mm) — probably good enough for everything from mouse teeth thru racoon teeth. The heaviest part of the bag is the heavy-duty velcro opening, which must be NASA-certified as it takes a bit of force to open. (I think the closure is also reinforced with the SS fabric to prevent critters from chewing their way in thru the velcro.) The closure has a heavy-duty grommet in it for hanging. You still need an inner bag for rain/insect protection. (I do like the idea of sticking a few cans of beer in the RatSack and using a stream as a cooler (dual purpose!). Don't carry too much beer though, so I haven't tested that aspect.)

On my last trip I simply didn't bring it, opting for an OP bag inside a SilNylon stuff sack, and didn't have any problems (and saved 6 oz.!). My logic was I didn't want to entice any critters no matter how resistant the barrier was, and since you need an inner bag anyway, I opted for the large OP bag + stuff sack combo. Perhaps on a longer trip, or in a tree-less, bear-less area it could compete with the Ursack.

I carry it rolled up under the lid since it could possibly do some abrading damage to light fabric when full.

I have had small holes chewed in Critter Sacks. Critter Sacks was the company the Ursack forced out of business. I lost no food. I think the poor critters chewed all night and got nothing.

I have a large RatSack. It is very effective. You could make your own, but stainless steel screen is difficult to find. Cheap house screen material will not work in the Grand Canyon. I lost a can of Pringles in less than a minute. Ravens are quick and clever.

So the ratsack will protect from sharp teeth of smaller animals, whereas the Ursak can have small holes nibbled into it from critters. What about birds? Two weekends ago I left a Duraflame firestarter log outside overnight, and I woke up to some ravens chewing it up. They made good work of it too. But it's made me thing about the durability of both products. I don't think bird beaks are as sharp or strong as dog or mice teeth, so maybe either product would work fine. But neither company talks about birds.

I’m confused about the comments being made regarding Ursack’s inability to withstand little teeth from so-called “critters”. I’ve used Ursacks for the past nine years in Southeast Alaska. Sure, we have huge bears, but we also have little bitty voles and worrisome squirrels. And then there are the ravens. They are smarter than humans and somewhat less selective in their foraging. The Ursack has performed well in the forest and on the beaches. More to the point of this thread, it has beat the most voracious Forest Service cabin vole. No other, “critter” that I know has the tenacity and the motivation to extract food from a bag than the vole. It lives on its own for five days of each winter week and then is provided ample opportunity to gorge itself on Friday and Saturday nights. The Ursack stands the test of the Grizzly and the mighty vole.

The Critter sacks were made from Spectra fabric. I took to leaving them on a flat rock at night. One morning there was a small hole in the bag. The hole was about .25 wide on the outside and only a pinpoint on the inside. I may have spilled foor on the outside, but do not remember anything in particular. I continue to use the sacks, but I now hang them.

That's a promising field report on Ursack's durability with small, sharp teeth & birds. However, my comments come from Ursack's web site, under the FAQ:

"Is Ursack resistant to rodents, marmots, wolves, etc?

Ursack is highly effective against Marmots and raccoons. It should not be considered wolf or dog resistant. That's because they have sharp teeth and strong jaws. Bears have great strength, but their teeth are not sharp.
Other rodents have varying degrees of success. Sometimes mice can chew very small holes, but very little of your food is likely to be taken. Some species of squirrels and (we have heard) pine martens have greater success, and may on rare occasion chew holes in Ursack."

This is why I started wondering if the thinner steel mesh of the Ratsack would be a more effective deterrent than the thicker but somewhat chewable Ursack if you hike in areas were rodents are more of a problem than bears. I've also noted that the smallest Ratsack is not only lighter but significantly larger than the Ursack.

I love my Ursack, but I haven't had a rodent try to eat through one yet, so I don't know what to expect. I suppose in bear country, the Ursack is the smart choice since it will protect against large and small animals. But I can't help but think about the big warning sign at the beginning of one of my favorite hikes in the Southern Sierras (Cannel Meadow trail): "WARNING: PLAGUE HAS BEEN DETECTED IN RODENTS IN THIS AREA." Makes me wonder if, at least in this area, a totally rodent-proof bag is better than a bear-proof one.

Oh, and a hanging an Ursack is no problem for a squirrel to get to, so I don't see that as a fool-proof solution, either. I have, however, considered ways of hanging my Caldera Cone above my Ursack, like a wide-brim hat, to keep the small animals away (like the squirrel deterrents for bird feeders), but I haven't managed anything that gives me confidence.

Been using Ursacks now for 7 years. I have used then in SEKI &Yosemite (when they were conditionally approved) as well as other parts of the Sierra's and coastel mountains. I have never even had a small hole from critters trying to open it or have I had bear problems with it. I have used my Ursack in Emmigrant, and Desolation without a single problem, bear or critter. They are a great piece of gear to use and maybe I have been lucky with no problems. Just wanted to state that.

I have been unable to order a ratsack from the website. Paypal is the go-between of choice. The owner of armoured outdoor gear ignored me for a month, 8 phoncalls, 20 emails and Paypal refunded my money within 4 days. A fellow named Brian (also in the Yahoo forum) had the exact same experience. It would be a great product for BPL to sell.

Just had the same experience as C. Austin above, ordered direct from the website, zero response to emails and phone calls regarding order status and product questions, and ended up getting my payment refunded (without any explanation from the company) after making a paypal complaint.

I had the SAME ordering problem about 6 months ago. I sent multiple emails, left multiple phone messages. No response. Luckily I filed for a refund via paypal within the 30 day time limit, just barely. I doubt I could have gotten my money back if had waited more than 30 days. The message that came with the refund, "my apologies for the confusion with your order". Confusion? All i did was order their product through their website. What is their problem?

Saw this thread and had to post – my rat sack has saved my food many a time (Walnut Bottoms in GSMNP and esp. near Phantom Ranch in the GC – cursed Kaibab Squirrels [he said as he shook his fist in the air]). Great item to have. I was off the AT in NC two winters ago and awoke to my ratsack hanging unblemished while another party nearby who shared the same bear cables had their goodies sprawled in the snow. By the way, M & M's may melt in your mouth and not on your hands but they will also melt in the snow and make a wonderfully colorful rainbow….

G'Day
This is a little off the subject but i have slept with lots of mice, rats and possums over the years. To the point where if a mouse runs over my head it doesn’t even rate a mention. What I do is simply stuff all my food and anything that has come in contact with food in my sleeping bag stuff bag and pull tight and hang it from something. To keep the mice off I used to get a plastic drink bottle (pet), cut the neck off down to were it is full diameter, poke a hole in the lid and thread the cord off the stuff sack thru it so it forms a little inverted funnel down the cord a bit. The mice get to it and either slide off it or won’t go down at all. Now days I have made a little clip together funnel orikaso style so it doesn’t take up any room
Hope this helps
Darren

I've seen that bottle method before as well as the aluminum pie pan and the tuna can method along with others. They do work and work well – cheap too and lighter so I'd say they're worth a go. I spent the money on a ratsack b/c I watched a squirrel launch himself onto my hanging food bag and dig his claws in to stop his fall. He hung upside down and tried to gnaw his way through my food sack (an Equinox stuff bag) before I ran him off with a series of bristle cone tosses. Guess it depends on the critters you have and their craftiness.

We used some recently in the Paria, and we did get those hopping mice bothering us one night. One tried to get into my pack where i had forgotten some antacid tablets. Those went into the ratsack that was hung from a tree.
I suppose the pie plate/bottle trick would work as long as the bag was suspended up far enough and away from any trees so that the critters can't jump onto it. Don't know how far those mice can jump and it depends on the site…There weren't enough large trees where we were.

For those with fears or tales of the Ursack being compromised, I would think that the aluminum liner should protect the sides. A bit of cushion on the bottom and something for a cover should be good, no? I'm only finding reports of enough to spill out, nothing where the critter has opened a hole big enough to climb in. Can anyone say otherwise?

Wow. Your replies are clueless. I'm glad you people got
what you paid for. Even though there are others that have
posted about being ripped off. I for one do not like
being ripped off. And no one should put up with those that
start a business, armoredoutdoorgear.com, that accept
payment for something that is not going to be delivered as
promised.
If you like throwing your money away then knock yourself
out. It will be reported as another business fraud and
we will start our own manufacture of the bags for people
that really enjoy the outdoors and not at the outragous
prices they are asking for either. Goog luck to all of you
and don't put up with scammers or trashers of the outdoors.
Those that used the ammo cans at Grand Canyon for trash
cans that the rangers have removed because of such. They
were for storing food not trash.